54443220 has 96 divisors (see below), whose sum is σ = 165430272. Its totient is φ = 13298688.

The previous prime is 54443219. The next prime is 54443239. The reversal of 54443220 is 2234445.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173784 + ... + 174096.

It is an arithmetic number, because the mean of its divisors is an integer number (1723232).

Almost surely, 2^54443220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54443220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82715136).

54443220 is an abundant number, since it is smaller than the sum of its proper divisors (110987052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54443220 is a wasteful number, since it uses less digits than its factorization.

54443220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 54443220 is about 7378.5649011173. The cubic root of 54443220 is about 379.0076137363.

Adding to 54443220 its reverse (2234445), we get a palindrome (56677665).

The spelling of 54443220 in words is "fifty-four million, four hundred forty-three thousand, two hundred twenty".